Estimate field emissions per hectare and per kg product from a few inputs. Runs fully in your browser with PDF export.
Inputs
Select rice for extra methane term.
Harvested product per hectare.
Total mineral + manure N applied (as N).
Tillage, planting, spraying, harvest, etc.
If none, leave 0. Lime emits CO₂ when it dissolves.
Default 1% (IPCC Tier 1). Range ~0.3–2% typical.
Simplified seasonal CH₄ total (flooded paddy). v1 default 1.2 t/ha.
Results
Total emissions (per hectare)
Intensity (per kg product)
t CO₂e/ha ÷ yield (t/ha) → g CO₂e/kg
Category
Formula (v1)
t CO₂e/ha
Total
Breakdown by category (pie)
Category totals (t CO₂e/ha)
Method (v1, simplified):
N₂O from fertilizer (EF × N, then ×44/28 to N₂O, ×GWP), diesel (L × EF), lime (t × 0.44 × 1000 kg/t), and optional rice methane factor.
Default GWP₁₀₀: N₂O=265, CH₄=28 (AR5). Factors indicative; refine per region/practice in later versions.
Disclaimer (beta):
The SustainabilityFlows.org website and tools are under active development and provided for informational purposes only.
Results are simplified estimates, not professional advice or compliance determinations. No warranties are expressed or implied.
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We do not endorse, sell, or link to market products; any references are illustrative only.